./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 64b25926fb6c7e27855d812b862643321480d6d0eb308c80224ee02bfde27516 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 13:36:46,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 13:36:46,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 13:36:46,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 13:36:46,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 13:36:46,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 13:36:46,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 13:36:46,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 13:36:46,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 13:36:46,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 13:36:46,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 13:36:46,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 13:36:46,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 13:36:46,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 13:36:46,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 13:36:46,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 13:36:46,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 13:36:46,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 13:36:46,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 13:36:46,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 13:36:46,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 13:36:46,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 13:36:46,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 13:36:46,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 13:36:46,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 13:36:46,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 13:36:46,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 13:36:46,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 13:36:46,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 13:36:46,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 13:36:46,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 13:36:46,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 13:36:46,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 13:36:46,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 13:36:46,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 13:36:46,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 13:36:46,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 13:36:46,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 13:36:46,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 13:36:46,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 13:36:46,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 13:36:46,481 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-22 13:36:46,502 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 13:36:46,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 13:36:46,506 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 13:36:46,506 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 13:36:46,506 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 13:36:46,507 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 13:36:46,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 13:36:46,507 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 13:36:46,507 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 13:36:46,507 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 13:36:46,508 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 13:36:46,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 13:36:46,508 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 13:36:46,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 13:36:46,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 13:36:46,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 13:36:46,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 13:36:46,509 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 13:36:46,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 13:36:46,509 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 13:36:46,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 13:36:46,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 13:36:46,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 13:36:46,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 13:36:46,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 13:36:46,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 13:36:46,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 13:36:46,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 13:36:46,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 13:36:46,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 13:36:46,512 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 13:36:46,512 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 13:36:46,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 13:36:46,513 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 13:36:46,513 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64b25926fb6c7e27855d812b862643321480d6d0eb308c80224ee02bfde27516 [2021-12-22 13:36:46,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 13:36:46,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 13:36:46,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 13:36:46,752 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 13:36:46,753 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 13:36:46,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2021-12-22 13:36:46,818 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e77ba33d/ab12b2c1bf9448fa8275d5c42bc54022/FLAGc01120070 [2021-12-22 13:36:47,216 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 13:36:47,217 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2021-12-22 13:36:47,241 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e77ba33d/ab12b2c1bf9448fa8275d5c42bc54022/FLAGc01120070 [2021-12-22 13:36:47,258 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e77ba33d/ab12b2c1bf9448fa8275d5c42bc54022 [2021-12-22 13:36:47,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 13:36:47,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 13:36:47,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 13:36:47,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 13:36:47,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 13:36:47,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:36:47" (1/1) ... [2021-12-22 13:36:47,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bc379f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:47, skipping insertion in model container [2021-12-22 13:36:47,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:36:47" (1/1) ... [2021-12-22 13:36:47,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 13:36:47,295 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 13:36:47,429 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2021-12-22 13:36:47,531 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 13:36:47,541 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 13:36:47,553 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2021-12-22 13:36:47,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 13:36:47,596 INFO L208 MainTranslator]: Completed translation [2021-12-22 13:36:47,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:47 WrapperNode [2021-12-22 13:36:47,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 13:36:47,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 13:36:47,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 13:36:47,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 13:36:47,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:47" (1/1) ... [2021-12-22 13:36:47,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:47" (1/1) ... [2021-12-22 13:36:47,627 INFO L137 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2021-12-22 13:36:47,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 13:36:47,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 13:36:47,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 13:36:47,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 13:36:47,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:47" (1/1) ... [2021-12-22 13:36:47,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:47" (1/1) ... [2021-12-22 13:36:47,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:47" (1/1) ... [2021-12-22 13:36:47,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:47" (1/1) ... [2021-12-22 13:36:47,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:47" (1/1) ... [2021-12-22 13:36:47,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:47" (1/1) ... [2021-12-22 13:36:47,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:47" (1/1) ... [2021-12-22 13:36:47,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 13:36:47,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 13:36:47,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 13:36:47,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 13:36:47,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:47" (1/1) ... [2021-12-22 13:36:47,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 13:36:47,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 13:36:47,708 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 13:36:47,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 13:36:47,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 13:36:47,736 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-22 13:36:47,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 13:36:47,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 13:36:47,736 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-22 13:36:47,736 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-22 13:36:47,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 13:36:47,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 13:36:47,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 13:36:47,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 13:36:47,738 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-22 13:36:47,830 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 13:36:47,831 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 13:36:47,993 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 13:36:47,997 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 13:36:47,998 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 13:36:47,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:36:47 BoogieIcfgContainer [2021-12-22 13:36:47,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 13:36:48,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 13:36:48,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 13:36:48,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 13:36:48,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:36:47" (1/3) ... [2021-12-22 13:36:48,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a98ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:36:48, skipping insertion in model container [2021-12-22 13:36:48,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:47" (2/3) ... [2021-12-22 13:36:48,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a98ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:36:48, skipping insertion in model container [2021-12-22 13:36:48,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:36:47" (3/3) ... [2021-12-22 13:36:48,005 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_pos.i [2021-12-22 13:36:48,008 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-22 13:36:48,008 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 13:36:48,008 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 13:36:48,008 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-22 13:36:48,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,034 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,034 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,035 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,035 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,041 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,047 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,047 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,047 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,047 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:36:48,049 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-22 13:36:48,117 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 13:36:48,128 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 13:36:48,128 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-22 13:36:48,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions, 137 flow [2021-12-22 13:36:48,185 INFO L129 PetriNetUnfolder]: 1/65 cut-off events. [2021-12-22 13:36:48,186 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-22 13:36:48,189 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 65 events. 1/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2021-12-22 13:36:48,189 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 66 transitions, 137 flow [2021-12-22 13:36:48,193 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 55 transitions, 113 flow [2021-12-22 13:36:48,217 INFO L129 PetriNetUnfolder]: 0/54 cut-off events. [2021-12-22 13:36:48,217 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-22 13:36:48,218 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-22 13:36:48,218 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 13:36:48,219 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-22 13:36:48,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 13:36:48,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1593244809, now seen corresponding path program 1 times [2021-12-22 13:36:48,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 13:36:48,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142685267] [2021-12-22 13:36:48,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 13:36:48,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 13:36:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:36:48,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 13:36:48,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 13:36:48,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142685267] [2021-12-22 13:36:48,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142685267] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 13:36:48,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 13:36:48,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 13:36:48,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949906781] [2021-12-22 13:36:48,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 13:36:48,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 13:36:48,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 13:36:48,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 13:36:48,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 13:36:48,534 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 66 [2021-12-22 13:36:48,538 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 55 transitions, 113 flow. Second operand has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 13:36:48,538 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-22 13:36:48,539 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 66 [2021-12-22 13:36:48,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-22 13:36:48,597 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-12-22 13:36:48,598 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-22 13:36:48,598 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 71 events. 2/71 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 77 event pairs, 0 based on Foata normal form. 2/73 useless extension candidates. Maximal degree in co-relation 52. Up to 6 conditions per place. [2021-12-22 13:36:48,599 INFO L132 encePairwiseOnDemand]: 61/66 looper letters, 5 selfloop transitions, 2 changer transitions 7/62 dead transitions. [2021-12-22 13:36:48,599 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 62 transitions, 155 flow [2021-12-22 13:36:48,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 13:36:48,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-22 13:36:48,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 408 transitions. [2021-12-22 13:36:48,616 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8831168831168831 [2021-12-22 13:36:48,616 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 408 transitions. [2021-12-22 13:36:48,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 408 transitions. [2021-12-22 13:36:48,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 13:36:48,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 408 transitions. [2021-12-22 13:36:48,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 58.285714285714285) internal successors, (408), 7 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 13:36:48,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 13:36:48,638 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 13:36:48,639 INFO L186 Difference]: Start difference. First operand has 59 places, 55 transitions, 113 flow. Second operand 7 states and 408 transitions. [2021-12-22 13:36:48,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 62 transitions, 155 flow [2021-12-22 13:36:48,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 62 transitions, 154 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-22 13:36:48,644 INFO L242 Difference]: Finished difference. Result has 69 places, 55 transitions, 128 flow [2021-12-22 13:36:48,645 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=128, PETRI_PLACES=69, PETRI_TRANSITIONS=55} [2021-12-22 13:36:48,648 INFO L334 CegarLoopForPetriNet]: 59 programPoint places, 10 predicate places. [2021-12-22 13:36:48,649 INFO L470 AbstractCegarLoop]: Abstraction has has 69 places, 55 transitions, 128 flow [2021-12-22 13:36:48,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 13:36:48,649 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-22 13:36:48,649 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 13:36:48,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 13:36:48,667 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-22 13:36:48,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 13:36:48,669 INFO L85 PathProgramCache]: Analyzing trace with hash 982120582, now seen corresponding path program 1 times [2021-12-22 13:36:48,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 13:36:48,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520604417] [2021-12-22 13:36:48,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 13:36:48,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 13:36:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:36:48,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 13:36:48,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 13:36:48,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520604417] [2021-12-22 13:36:48,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520604417] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 13:36:48,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 13:36:48,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 13:36:48,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84442520] [2021-12-22 13:36:48,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 13:36:48,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 13:36:48,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 13:36:48,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 13:36:48,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 13:36:48,788 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 66 [2021-12-22 13:36:48,788 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 55 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 47.0) internal successors, (282), 6 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 13:36:48,788 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-22 13:36:48,788 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 66 [2021-12-22 13:36:48,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-22 13:36:48,850 INFO L129 PetriNetUnfolder]: 1/69 cut-off events. [2021-12-22 13:36:48,851 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-12-22 13:36:48,851 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 69 events. 1/69 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 1 based on Foata normal form. 5/74 useless extension candidates. Maximal degree in co-relation 104. Up to 11 conditions per place. [2021-12-22 13:36:48,852 INFO L132 encePairwiseOnDemand]: 60/66 looper letters, 14 selfloop transitions, 6 changer transitions 0/55 dead transitions. [2021-12-22 13:36:48,852 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 55 transitions, 168 flow [2021-12-22 13:36:48,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 13:36:48,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-22 13:36:48,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 242 transitions. [2021-12-22 13:36:48,853 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2021-12-22 13:36:48,853 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 242 transitions. [2021-12-22 13:36:48,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 242 transitions. [2021-12-22 13:36:48,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 13:36:48,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 242 transitions. [2021-12-22 13:36:48,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 13:36:48,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 13:36:48,856 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 13:36:48,857 INFO L186 Difference]: Start difference. First operand has 69 places, 55 transitions, 128 flow. Second operand 5 states and 242 transitions. [2021-12-22 13:36:48,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 55 transitions, 168 flow [2021-12-22 13:36:48,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 55 transitions, 156 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-12-22 13:36:48,860 INFO L242 Difference]: Finished difference. Result has 63 places, 55 transitions, 128 flow [2021-12-22 13:36:48,860 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=128, PETRI_PLACES=63, PETRI_TRANSITIONS=55} [2021-12-22 13:36:48,861 INFO L334 CegarLoopForPetriNet]: 59 programPoint places, 4 predicate places. [2021-12-22 13:36:48,861 INFO L470 AbstractCegarLoop]: Abstraction has has 63 places, 55 transitions, 128 flow [2021-12-22 13:36:48,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 47.0) internal successors, (282), 6 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 13:36:48,862 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-22 13:36:48,862 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 13:36:48,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 13:36:48,862 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-22 13:36:48,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 13:36:48,862 INFO L85 PathProgramCache]: Analyzing trace with hash -144193612, now seen corresponding path program 2 times [2021-12-22 13:36:48,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 13:36:48,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523298223] [2021-12-22 13:36:48,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 13:36:48,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 13:36:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 13:36:48,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 13:36:48,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 13:36:48,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523298223] [2021-12-22 13:36:48,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523298223] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 13:36:48,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 13:36:48,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 13:36:48,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865100119] [2021-12-22 13:36:48,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 13:36:48,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 13:36:48,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 13:36:48,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 13:36:48,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 13:36:48,954 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 66 [2021-12-22 13:36:48,954 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 55 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 47.0) internal successors, (282), 6 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 13:36:48,954 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-22 13:36:48,955 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 66 [2021-12-22 13:36:48,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-22 13:36:49,030 INFO L129 PetriNetUnfolder]: 0/63 cut-off events. [2021-12-22 13:36:49,030 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-12-22 13:36:49,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 63 events. 0/63 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 1/64 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2021-12-22 13:36:49,031 INFO L132 encePairwiseOnDemand]: 61/66 looper letters, 15 selfloop transitions, 5 changer transitions 1/56 dead transitions. [2021-12-22 13:36:49,031 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 56 transitions, 174 flow [2021-12-22 13:36:49,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 13:36:49,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-22 13:36:49,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 242 transitions. [2021-12-22 13:36:49,032 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2021-12-22 13:36:49,032 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 242 transitions. [2021-12-22 13:36:49,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 242 transitions. [2021-12-22 13:36:49,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 13:36:49,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 242 transitions. [2021-12-22 13:36:49,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 13:36:49,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 13:36:49,034 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 13:36:49,034 INFO L186 Difference]: Start difference. First operand has 63 places, 55 transitions, 128 flow. Second operand 5 states and 242 transitions. [2021-12-22 13:36:49,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 56 transitions, 174 flow [2021-12-22 13:36:49,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 56 transitions, 166 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-12-22 13:36:49,037 INFO L242 Difference]: Finished difference. Result has 64 places, 55 transitions, 131 flow [2021-12-22 13:36:49,037 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=131, PETRI_PLACES=64, PETRI_TRANSITIONS=55} [2021-12-22 13:36:49,039 INFO L334 CegarLoopForPetriNet]: 59 programPoint places, 5 predicate places. [2021-12-22 13:36:49,040 INFO L470 AbstractCegarLoop]: Abstraction has has 64 places, 55 transitions, 131 flow [2021-12-22 13:36:49,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 47.0) internal successors, (282), 6 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 13:36:49,040 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-22 13:36:49,040 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 13:36:49,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 13:36:49,040 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-22 13:36:49,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 13:36:49,041 INFO L85 PathProgramCache]: Analyzing trace with hash -735767419, now seen corresponding path program 1 times [2021-12-22 13:36:49,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 13:36:49,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25823881] [2021-12-22 13:36:49,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 13:36:49,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 13:36:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 13:36:49,086 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 13:36:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 13:36:49,115 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 13:36:49,115 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-22 13:36:49,116 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-22 13:36:49,117 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-12-22 13:36:49,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 13:36:49,120 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2021-12-22 13:36:49,123 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-22 13:36:49,123 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-22 13:36:49,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 01:36:49 BasicIcfg [2021-12-22 13:36:49,156 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-22 13:36:49,156 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 13:36:49,156 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 13:36:49,157 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 13:36:49,157 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:36:47" (3/4) ... [2021-12-22 13:36:49,158 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-22 13:36:49,199 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 13:36:49,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 13:36:49,204 INFO L158 Benchmark]: Toolchain (without parser) took 1943.55ms. Allocated memory was 90.2MB in the beginning and 130.0MB in the end (delta: 39.8MB). Free memory was 57.3MB in the beginning and 52.2MB in the end (delta: 5.1MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. [2021-12-22 13:36:49,204 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 90.2MB. Free memory was 62.9MB in the beginning and 62.9MB in the end (delta: 28.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 13:36:49,206 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.64ms. Allocated memory was 90.2MB in the beginning and 130.0MB in the end (delta: 39.8MB). Free memory was 57.1MB in the beginning and 99.2MB in the end (delta: -42.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-22 13:36:49,206 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.23ms. Allocated memory is still 130.0MB. Free memory was 99.2MB in the beginning and 97.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 13:36:49,206 INFO L158 Benchmark]: Boogie Preprocessor took 16.66ms. Allocated memory is still 130.0MB. Free memory was 97.0MB in the beginning and 95.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 13:36:49,207 INFO L158 Benchmark]: RCFGBuilder took 353.64ms. Allocated memory is still 130.0MB. Free memory was 95.7MB in the beginning and 84.5MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-22 13:36:49,207 INFO L158 Benchmark]: TraceAbstraction took 1155.48ms. Allocated memory is still 130.0MB. Free memory was 83.8MB in the beginning and 56.4MB in the end (delta: 27.4MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2021-12-22 13:36:49,207 INFO L158 Benchmark]: Witness Printer took 47.41ms. Allocated memory is still 130.0MB. Free memory was 56.4MB in the beginning and 52.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-22 13:36:49,210 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 90.2MB. Free memory was 62.9MB in the beginning and 62.9MB in the end (delta: 28.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.64ms. Allocated memory was 90.2MB in the beginning and 130.0MB in the end (delta: 39.8MB). Free memory was 57.1MB in the beginning and 99.2MB in the end (delta: -42.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.23ms. Allocated memory is still 130.0MB. Free memory was 99.2MB in the beginning and 97.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.66ms. Allocated memory is still 130.0MB. Free memory was 97.0MB in the beginning and 95.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 353.64ms. Allocated memory is still 130.0MB. Free memory was 95.7MB in the beginning and 84.5MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1155.48ms. Allocated memory is still 130.0MB. Free memory was 83.8MB in the beginning and 56.4MB in the end (delta: 27.4MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * Witness Printer took 47.41ms. Allocated memory is still 130.0MB. Free memory was 56.4MB in the beginning and 52.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int g = 0; VAL [g=0] [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, g=0] [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, D={4:0}, g=0] [L693] 0 pthread_t id; VAL [A={3:0}, D={4:0}, g=0, id={5:0}] [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, D={4:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 g = 17 VAL [A={3:0}, arg={0:0}, arg={0:0}, D={4:0}, g=17] [L698] CALL 0 __VERIFIER_assert(g == 0) [L19] COND TRUE 0 !(cond) VAL [\old(cond)=0, A={3:0}, arg={0:0}, arg={0:0}, cond=0, D={4:0}, g=17] [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, arg={0:0}, cond=0, D={4:0}, g=17] - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 78 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 11 mSDtfsCounter, 127 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=3, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 456 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-12-22 13:36:49,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE